This image from video provided by Alhurra Television shows a black Infiniti speeding near the U.S. Capitol in Washington, Thursday, Oct. 3, 2013. AP Photo/Alhurra Television

This image from video provided by Alhurra Television shows police with guns drawn surrounding a black Infiniti near the U.S. Capitol in Washington, Thursday, Oct. 3, 2013. AP Photo/Alhurra Television

A U.S. Park Police helicopter is loaded with a police officer on the Mall in Washington, Thursday, Oct. 3, 2013, with a victim from a shooting. A woman driving a black Infiniti with a young child inside tried to ram through a White House barricade Thursday, then led police on a chase that ended in gunfire outside the Capitol, witnesses and officials said. AP Photo/Alex Brandon

Members of the FBI Hostage Rescue Team arrive on Capitol Hill in Washington, Thursday, Oct. 3, 2013. A woman driving a black Infiniti with a young child inside tried to ram through a White House barricade Thursday, then led police on a chase that ended in gunfire outside the Capitol, witnesses and officials said. AP Photo/Alex Brandon

A federal agent removes evidence from the apartment complex where Miriam Carey is believed to have lived in Stamford, Conn., Friday, Oct. 4, 2013. Law-enforcement authorities have identified Carey, 34, as the woman who, with a 1-year-old child in her car, led Secret Service and police on a harrowing chase in Washington from the White House past the Capitol Thursday. AP Photo/John Minchillo

A damaged Capitol Hill police car is surrounded by crime scene tape on Constitution Avenue near the U.S. Capitol after a car chase and shooting occurred Thursday, Oct. 3, 2013, in Washington. A woman with a young child inside tried to ram through a White House barricade, then led police on a chase toward the Capitol, where police shot and killed her, witnesses and officials said. AP Photo/ Evan Vucci

Members of the Secret Service stand outside the checkpoint entrance for the White House at 15th and E Streets in northwest Washington, Thursday, Oct. 3, 2013. A woman with a young child inside tried to ram through a White House barricade, then led police on a chase toward the Capitol, where police shot and killed her, witnesses and officials said. AP Photo/Pablo Martinez Monsivais

Secret Service spokesman Ed Donovan, Left, Washington Police Chief Cathy Lanier, second from right, and U.S. Capitol Police Chief Kim Dine, right, address the media regarding a police chase and shooting, on Capitol Hill in Washington, Thursday, Oct. 3, 2013. A woman driving a black Infiniti with a young child inside tried to ram through a White House barricade Thursday, then led police on a chase that ended in gunfire outside the Capitol, witnesses and officials said. AP Photo/Molly Riley